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http://dx.doi.org/10.1177/00494755251317562 | DOI Listing |
Arch Microbiol
September 2025
Medical and Biological Computing Laboratory, School of Biosciences and Technology (SBST), Vellore Institute of Technology (VIT), Vellore, 632014, India.
Salmonella enterica serovar Typhi, the etiological agent of Typhoid fever, remains a critical public health concern associated with high morbidity in many developing countries. The widespread emergence of multidrug-resistant (MDR) Salmonella Typhi strains against the fluoroquinolone group of antibiotics, particularly ciprofloxacin, poses a significant global therapeutic challenge with underlying resistance due to mutations in quinolone-resistance determining region (QRDR) of gyrA gene, encoding DNA gyrase subunit A (GyrA). In pursuit of alternative therapeutic candidates, the present study was designed to evaluate ciprofloxacin analogues against prevalent GyrA mutations (S83F, D87G, and D87N) to overcome fluoroquinolone resistance through machine learning (ML)-based approach.
View Article and Find Full Text PDFInfect Disord Drug Targets
September 2025
Department of Microbiology, AIIMS, Jodhpur, India.
Introduction: Typhoid fever, caused by Salmonella Typhi and Paratyphi, remains a sig-nificant public health concern, particularly in developing countries. The emergence of antimicrobial resistance, including resistance to first-line drugs, fluoroquinolones, and the development of re-sistance to ceftriaxone, poses a significant threat to effective treatment.
Methods: This study investigated extended-spectrum β-lactamase (ESBL)-producing Salmonella Typhi isolates from blood samples of patients with suspected typhoid fever at a tertiary care hospital in Western Rajasthan, India, between April 2022 and May 2024.
J Antimicrob Chemother
September 2025
US Food and Drug Administration, Center for Veterinary Medicine, Office of Applied Science, Laurel, MD, USA.
Objectives: Integrons facilitate the capture and expression of exogenous genes, including antimicrobial resistance (AMR) genes. This study aimed to detect the presence of integrons, examine their genomic structure and location, and analyse integron-associated AMR, virulence and stress response genes in Salmonella using WGS.
Methods: WGS data from 193 Salmonella strains, representing 38 serotypes isolated from food animals and related meat products (2001-2019), were analysed using bioinformatic tools to assess integron presence and characterize their genomic architectures.
Cureus
July 2025
Department of General Medicine, Mufti Mehmood Memorial Teaching Hospital, Medical Teaching Institute, Dera Ismail Khan, PAK.
Background Dengue fever significantly burdens healthcare systems, particularly in resource-limited settings such as Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan. Mufti Mehmood Memorial Teaching Hospital, the designated Dengue Isolation Unit in the region, continues to receive a steady influx of patients. This study analyzed the epidemiological profile of dengue cases admitted to the hospital to support public health planning and guide resource allocation.
View Article and Find Full Text PDFInt J Environ Res Public Health
August 2025
Disaster Management Training Education Centre (DIMTEC), Faculty of Natural and Agricultural Sciences, University of Free State, Bloemfontein 9301, South Africa.
Climate change has magnified health disparities across the Southern African Development Community (SADC) region by destabilizing the critical natural systems, which include water security, food production, and disease ecology. The IPCC (2007) underscores the disproportionate impact on low-income populations characterized by limited adaptive capacity, exacerbating existing vulnerabilities. Rising temperatures, erratic precipitation patterns, and increased frequency of extreme weather events ranging from prolonged droughts to catastrophic floods have created favourable conditions for the spread of waterborne diseases such as cholera, dysentery, and typhoid, as well as the expansion of vector-borne diseases zone also characterized by warmer and wetter conditions where diseases like malaria thrives.
View Article and Find Full Text PDF